Specifying templates¶

Templates are specified in blendz using two different types of file, the template file itself, and a template set. Template sets are configuration files containing the name, type and filepath of a collection of templates so that the whole set can be specified as a single configuration option.

Included templates¶

The blendz installation includes the 8 templates from BPZ. The template_set_path configuration option points to the folder where these are stored by default. As a result, these can be easily used by setting the template_set configuration option to either BPZ8 or BPZ6, where the latter excludes the two starburst templates added to BPZ by Coe et al. 2006.

A set of only a single template can also be specified using one of the following options:

`single/El_B2004a`	`single/Sbc_B2004a`
`single/Scd_B2004a`	`single/Im_B2004a`
`single/SB2_B2004a`	`single/SB3_B2004a`
`single/ssp_5Myr_z008`	`single/ssp_25Myr_z008`

Loading custom templates¶

If you want to supply your own templates, you need to create a template set file. This is a configuration file containing the following information:

The unique name of every template
The path to the file specifying the template relative to the location of the template set file.
The galaxy type a string to group templates together in the prior.

An example layout of a template set is given below:

[name_of_template_1]
path = path/to/template1.txt
type = early

[name_of_template_2]
path = path/to/template1.txt
type = late

When using custom templates, the configuration option template_set_path should point to the folder containing your ntemplate set file, and template_set should be the full filename, including the file extension.

Each template refered to in the template set file is then specified by a plaintext file of two columns, wavelength (Angstroms) in the first, and spectral flux density in the second, separated by whitespace, e.g.

0  0.0329579004203
0  0.0332336431181
0  0.0335731230922
0  0.033939398051
0  0.0342922864396
0  0.0346317644112
0  0.0349582358084
0  0.0352716948728
0  0.0355717998991
0  0.0358573156287
0  0.0361306346606